"Just dive Anivia"
Captains Log: Day 84 since operation "Dive Anivia" (O.D.A)
84 days have since past from which I ordered my men to dive Anivia in a valiant effort to heat up the freelo ice bird. 3 of my men have since passed away from hypothermia, one was instantly frozen and I'm still picking ice sickles out of my buttocks. The freelo ice bird kept yelling outplayed as we met our icey doom in her cold aoe freelo ult. If you read this, if you're a soul fortunate enough to have not tried such a silly thing, understand that diving Anivia is a fruitless effort as you'll just get balanced on and melted by her aoe ice ult. Even in the event you come close, she'll activate her trap card: Zimmermans Powerglass and become enchanted in golden shower ice as she coldy watches you freeze to your mortal knees. This is Captain Jarvan, and I was not helping. Over and out.
Tl;dr you can't just dive an aoe based champion without getting through her massive aoe ult and dying first. Gut the bird.